Home / 80,366.86-120,482.22-49,136.50

Finding the Fourth Proportional to 80,366.86, 120,482.22 and 49,136.50

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Solution

The fourth proportional to 80,366.86, 120,482.22 and 49,136.50 is: 73,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,366.86 : 120,482.22 = 49,136.50 : x
  2. Step 2: Convert to fraction form
    80,366.86/120,482.22 = 49,136.50/x
  3. Step 3: Cross multiply
    80,366.86x = 120,482.22 × 49,136.50
  4. Step 4: Simplify right side
    80,366.86x = 5,920,074,603.03
  5. Step 5: Solve for x
    x = 5,920,074,603.03/80,366.86
  6. Step 6: Final answer
    x = 73,663.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.